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Major dilemna with upgrade / migration from Exch 07 to 2010

21st January 2017, 16:02

So, I have a dilemma.

Client was running SBS2003 (demoted), Server2008 std (Is a DC) with Exchange 2007 sp3.
Am in the process of upgrading / migrating to server 2008 r2 and Exchange
2010. 2008 r2 server has all fsmo roles (Is Master of all) but when I
go to install Ex2010, it fails because domain/forest functionality stuck
at server 2008 std (Not r2). Is it possible to do an OS in place upgrade
from std to r2 on the exchange 2007 box in order to completely raise the
domain functionality to 2008 r2? Will exchange 2007 break if I manually
change functionality with adsiedit?

Comment

You are right - demoting a DC with Exchange will break Exchange
Can you explain a bit more about your environment and what you are trying to do - in post 1 it is the domain FL, in post 3 you are talking about an OS upgrade

As I said earlier, you should not need to raise the FL for Exchange 2010

Comment

So, they started with SBS 2003. At some point, someone installed server 08 standard and installed Exchange 07. What I need to do is install and Migrate Exchange 2010 on server 2008 r2. I have already seized the FSMO and made the 2008 r2 the master of all. Problem is that when I get ready to install the Exchange 2010, it tells me that the Functional level is not high enough. Currently it is at server 2008 standard. I need it to be 2008 r2. Or, I install another non DC on server 2008 standard and then Exchange 2010 on that standard server.